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aitrh tsrs @anni @frn iMrsovrD rrAri-innme PADDL WHEEL. i

JOHN v. DINSMonE, or MILFORD, MASSACHUSETTS, ASSIGNORTO HIMSELF y AND M.y HARRIS. or SAME PLAGE,

Letters Patent No. 60,345, dated December 11, 1866.

dit tlgetule narra in im ma tettm rtmt ma makingpatt i thi `time TO ALL PERSONS TO WHOM THESE PRESENTS SHALL COME:

Be it known that I, JoHN V. DINsMonE, of Milford, in the county of Worcester, and `State of Massachu i sette, have invented an Improved Feathering Paddle vWheel, and I do Yhereby declare the same to be fully described in the following specification, and represented in the accompanying drawings, of which- Figure l is a side elevation, and

Figure 2 a transverse section of such wheel, as applied to the side of a steaniship or vessel.

Figure 3 is an inner side view of the wheel, as separate from the vessel. d

Figure 4 is a side view of the devices applied to the side of the vessel, and v.tov aid in ei'ectingthe axial moi tions of each paddle of the wheel. p

In the drawings, A denotes the hub of the wheel, provided with a tubular shaft to project fromits center,` and to encompass and be xed to a driving shaft, C, projecting through the side D, of `the vessel. E EEE are four paddles, each of which is fixed to one of four shafts, F F F F, that are arranged radially with respect should be capable of sliding lengthwise as well as turning transversely within its bearing. Each of the bearings, at its inner end, is provided with an annular head, c, which is recessed, or fornied with two shoulders, d e,

and a notch f,.close to one of the shoulders, the same being as shown in iig. '3, and also in fig. 5, which is an end view of the head c. A Stud g, extends from each shaft, iF, and between the shoulders d e, of its bearing head c,`

and serves with such shoulders to stop the axial movements of the paddle. When the stud isin the notch the paddle cannot be turned 'in either direction axially, and this is the position of it 'whilenit is in the act of propeli ling the vessel throgh the water. Each shaft, at its end, carries a small wheel, h, which is to run on the `outer surface of a.ca1n G, projecting from Vthe side of the vessel.- A portion z', of thesaid cam is stationary, the rest of it, or that part marked c, being hinged to the part e', and movable with respecttoiit; that is, from the pcf sition Shown' in full black lines in iig. 4 into that as represented in dotted lines in such figure-the movements i of such part c, of such cam being effected by a bent lever Z, suitably applied to the cam and the vessel. Each shaft F, also has an arm m, extending from it at right angles to it, and furthermore, such shaft has a horizontal projection or caro n, extending from it laterally. These eains, during each 'revolution ofthe paddle-wheel,

are intendedto he brought successively into contact with the periphery of the roller,.o, carried by an arm, lo,

extended from the side of the vessel and below the cam G. Over the cam, G, and` attached to the side of the p vessel, is another cam, q, against which the arms m, are to be borne in succession while the paddle-wheel'is in revolution.' The axis of each paddle is somewhat eccentric with respect to thatof its shaft, F, and furthermore,

each paddle is curved a little near that side of it which is farthest from its shaft, the curve being as shown at r, and the arrangement'of the paddle relatively to its shaft being as' represented in the drawings. The `movement 1 lto the hub, and are supported in tubular bearings b b b b, projecting from the inner face ofthe hub. Each shaft i of each paddle shaft E, inward toward the axis of the wheel is limited by a shoulder s, (formed on the shaft F,) i; being broughtA up against the outer end of the bearing I1. While the wheel is in revolution, each paddle, in pass- I` ing over and by the cam g, will have its shaft depressed in its bearing s o as to enable tli'e said shaft to be turned by the action of the cam q against the paddle arm m, while the Alatter is in the act of passing it.` This `action will cause the paddle to be turned ninety degrees, so as to bring its stud g, .into a position to enter thelnotchf, s into which the stud will be forced as the roller `of the shaft F rises over the part u of the cani Gr. While the wheel is travelling on'the stationary part of the cam, the paddle, by such part, will be held from revolving airi-` A ally, and while inthe act of propelling the vessel. vOn rising out of the water, the cam 'n of the paddle will be carried into contact with the roller o, which will raise the paddle so as to move its stud y out of its notch f, and

enable the paddle to turn. s The action of the paddle against the water while rising cnt of it will causethe padl dle to feather, or turn, so as `to pass edgewise out of the4 water. Thus eachpaddle, while passing into thewater s and propelling the vessel, will act datwise against Athe water, but while rising-out of the water, it will feather,

or be caused to go yedgcwise out of it. In this way what is termed the effect of back wateron the wheel will be i overcome. By 'raising the part k of the cam g into the position as exhibited by dotted lines, the paddles will be prevented from feathering while the paddle wheel is being revolved so as to move thc vessel backward. The purpose of the curve of the edge of each paddle is to insure the paddle being turned ilatwise against the w'a/ter while the wheel is .in the :Lotof backing. v

I claim the combination for operating each of the paddles while hthe wheel is revolving, the same consisting of the cam G, the sliding and rotary shaft F, its bearing b, stud g, notch j', shoulders d e, arm m, cams n and g, and the :t1-mp, and roller o, or the equivalent thereofpthe paddle being applied eeeentricelly upon the shaft, and the whole being, in other respects, substantially as hereinbefore. described. j

` I also claim the cam G, as made in two parts, hinged together, and applied to the side of the vessel, so that one of .them may be stationary thereon, and the other movable, as and to produce with the wheel results as above set forth. I v A JOHN. V. DINSMORE.

Witnesses:

R. H. EDDY, F. P. HALE, JR. Y 

